Choose a time interval while the system seems to be moving at a constant speed. During this interval, make measurements and determine the following for the larger front chain ring gear: The period of rotation of the gear
The average angular speed of the gear
The radius of the path the chain takes as it travels around the gear
The average tangential speed of the chain links as they travel around this gear
Also notice that there are colored dots painted on the chain and gears that you can use to make measurements.

Electoral current force mechanical advantage if the wheel and axle is 2 n and the output force is 20 n

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall

Multiply the 3 dimensions, assuming it is a rectangular cuboid, to get the volume in cm³ divide mass by volume to get density in g/cm³

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.